©The Author(s) 2026.
World J Gastroenterol. Feb 28, 2026; 32(8): 114571
Published online Feb 28, 2026. doi: 10.3748/wjg.v32.i8.114571
Published online Feb 28, 2026. doi: 10.3748/wjg.v32.i8.114571
Table 2 Epidemiology and survival outcome of primary gastrointestinal melanomas
| Site | Relative frequency | Median OS (months) |
| Anorectum | 50%-60% | 18-24 |
| Esophagus | 8%-12% | 10-15 |
| Stomach | 7%-10% | Approximately 6 |
| Small bowel | 7%-9% | 12-24 |
| Colon | 3%-5% | 15-20 |
- Citation: De Nardi P, Guida S, Damiano G, Rizzo N, Samanes Gajate AM, Riva ST, Paolino G, Colombo M, Tummineri R, Rongioletti F, Mercuri SR, Chiti A, Sileri P, Russo V. Primary melanoma of the gastrointestinal tract. World J Gastroenterol 2026; 32(8): 114571
- URL: https://www.wjgnet.com/1007-9327/full/v32/i8/114571.htm
- DOI: https://dx.doi.org/10.3748/wjg.v32.i8.114571